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Google's Transition To 64-Bit Apps Begins in August, 32-Bit Support To End in 2021 (ndtv.com)

In a bid to deliver better software experience on devices powered by 64-bit processors in the coming years, Google aims to shift Android towards a 64-bit app ecosystem. From a report: The company has now shed more light on the transition and has announced that developers will have to submit a 64-bit version of their Android apps starting August this year. This move will eventually culminate in a universal implementation of the 64-bit app policy that will be enforced in 2021, after which, Google will no longer host 32-bit apps on the Play Store accessed on a device based on 64-bit hardware. Google announced the move towards 64-bit apps in 2017, claiming that apps with 64-bit code offer significantly better performance. However, the search giant did not provide any details regarding the exceptions to the new rule or when the Play Store will cease to serve 32-bit apps. Google has now revealed that starting August 1 this year, developers must submit 64-bit versions of all new apps and app updates, alongside the old 32-bit versions prior to their publishing from the Play Store.

48 of 93 comments (clear)

  1. Re:Whatever happened to managed apps? by willaien · · Score: 1

    Not all android apps use the dalvik VM. You can create native android applications in c/c++. As well, you might link native libraries even if you're using the dalvik VM.

  2. Wither x32 ABI (not x86) :/ by Etcetera · · Score: 3, Interesting

    If there was ever a case for actual use of the x32 ABI, performance and memory restricted devices with 64bit processors in a controlled ecosystem would definitely be it.

    Most people aren't going to be needing 64bits for memory on an Android device any time soon -- rather than letting it be pulled from the kernel, the why not push for performance and efficiency in the areas where it still actually counts?

    1. Re:Wither x32 ABI (not x86) :/ by Desler · · Score: 4, Informative

      64-bit for ARM has very little to do with memory in most cases. It's for the improved AArch64 instruction set.

    2. Re:Wither x32 ABI (not x86) :/ by bobby · · Score: 1

      64-bit for ARM has very little to do with memory in most cases. It's for the improved AArch64 instruction set.

      Yeah, thanks for that. Either I'm confused, or most people are. AFAIK, 64-bit refers to the data word size, NOT address bits. I'm not aware of any CPU with 64 hardware I/O bits of address.

    3. Re:Wither x32 ABI (not x86) :/ by thegarbz · · Score: 1

      How about neither x32 nor x64. These are ARM devices.

  3. Re:Whatever happened to managed apps? by Desler · · Score: 1

    Why would you have thought this? Apps have used C and C++ libraries using the Android NDK for nearly a decade.

  4. Here, new ideas. by Anonymous Coward · · Score: 1

    For desktops and servers: AMD64, AArch64 and RISC-V 64-bit.

    For mobiles and embedded systems: AArch64, ARM, RISC-V 32-bit and RISC-V 64-bit.

    The architecture i386 is dead, nobody wants it.

    1. Re:Here, new ideas. by Megane · · Score: 1

      It may also help cull a lot of old phones, where the manufacturers typically won't give you an update more than a year after purchase, if any at all. How far back are 64-bit Android apps supported? There are still a lot of 4.x-era phones out there!

      --
      #naabhaprzrag, #sverubfr-000, #agi-fcbafberq, negvpyr[pynff*=' negvpyr-ary-'] { qvfcynl: abar !vzcbegnag; }
  5. Older phones by crow · · Score: 1

    I have a Samsung Galaxy S3, which has a 32-bit processor. In fact, the first 64-bit CPU in the series was with the S6. The S5 is still a very nice phone. It would be a shame if something happened to it's apps. It's particularly annoying if I want to install something that I know I had on it once, but it says it's no longer compatible, and the older compatible version is long gone.

    I fully understand wanting to have everything work in a 64-bit only world, but at the same time, they should strive to avoid obsoleting older equipment without good reason.

    1. Re:Older phones by 93+Escort+Wagon · · Score: 1

      Yeah, it was bloody annoying and inconvenient when Apple did this with iOS 11 a while back, and I'm pretty sure it'll be annoying and inconvenient for you Android users as well.

      People like to gloss over this with "well, the developers just need to check a box" - but there is a fair bit of software out there that is still useful but unmaintained. Lots of studios have gone tits up over the past 5-10 years; and lots of software has been abandoned after bigger studios bought out smaller developers.

      I didn't think losing 32-bit apps would be all that big a deal, beforehand... but now I wish I'd kept at least one device on iOS 10.3.3.

      --
      #DeleteChrome
    2. Re:Older phones by Solandri · · Score: 1

      Fortunately, Android users aren't as hamstrung as iOS users. You can convert your existing 32-bit Android apps to raw APK files. Save those on your computer and install them onto your older device by side-loading. Actually, I suspect when Google drops 32-bit-only apps from the Play store (making it impossible for 32-bit devices to use the Play store), other Android app repositories will take up the slack and continue to offer them. Depending on how many 32-bit devices are still in use in 2021, it might actually be a good opportunity to break the Play store's hegemony on Android apps.

    3. Re:Older phones by Wrath0fb0b · · Score: 1

      The galaxy S3 was launched in 2012. They are planning on pulling support in 2021 -- that seems like they have supported it above and beyond the expectation of 5-6 years.

    4. Re:Older phones by perpenso · · Score: 1

      Its not about when a phone first ships, its about when a phone stops being sold. Recently I bought a dirty cheap Galaxy S4 pay as you go. I wanted Android 4.4 for development testing. You can't quite trust the emulator. I expect S3 were sold until quite recently.

    5. Re:Older phones by iampiti · · Score: 1

      Did you buy a new Galaxy S4 recently? Where? That's a pretty old phone, I didn't expect it being sold as of 2019.

    6. Re:Older phones by perpenso · · Score: 1

      Summer 2018, Walmart, S4 Mini w/ 4.4. It was a dirt cheap prepaid phone. Never enabled the prepay, the wifi was all I needed for development testing.

    7. Re:Older phones by perpenso · · Score: 1

      FWIW a Sprint Prepaid phone. Seems new. Maybe Sprint offers it elsewhere or from them directly.

  6. Preparing for the 128 bit transition by jfdavis668 · · Score: 1

    We have to get rid of 32 bit support to prepare for the future 128 bit systems.

    1. Re:Preparing for the 128 bit transition by Kjella · · Score: 1

      We have to get rid of 32 bit support to prepare for the future 128 bit systems.

      CERN probably thinks so... they're up to 230 PB stored now, that's 58 bits and the limit is 16384 PB for a 64 bit address space. If they keep up the exponential growth they need 128 bit in a little over a decade. Well either that or use the D: drive...

      --
      Live today, because you never know what tomorrow brings
  7. 2038 is getting closer by xack · · Score: 1

    Like it or not, there will be systems using 32 bit by then. Being embedded systems and legacy apps. It's time to fix the problem now instead of just "dropping support" but making 32 bits work in the future.

    1. Re:2038 is getting closer by Merk42 · · Score: 2

      I wouldn't worry about it

      We'll all be dead from catastrophic climate change by then.

    2. Re: 2038 is getting closer by Provocateur · · Score: 1

      Sure thing, Earthwalker

      --
      WARNING: Smartphones have side effects--most of them undocumented.
    3. Re:2038 is getting closer by Megane · · Score: 1

      A 64-bit CPU is not required to have a 64-bit time. I think OS X has supported a 64-bit double time type since back in the NeXT days. Millisecond accuracy for centuries to come, yet still Y10K compliant!

      --
      #naabhaprzrag, #sverubfr-000, #agi-fcbafberq, negvpyr[pynff*=' negvpyr-ary-'] { qvfcynl: abar !vzcbegnag; }
  8. Re:Whatever happened to managed apps? by zilym · · Score: 1

    That's not strictly true... I've compiled and run plenty of command line executable apps on Android no problemo. It's when you want to make full fledged apps that draw graphics on the screen and are launchable from the Android home screen that you'll be compelled to compile as a library and use a dalvik launcher.

    Even then, it's not strictly required, although Google would like you to believe it to be. "YAFT" (yet another framebuffer terminal) seems to do everything including drawing on the screen without any Java.

  9. Re:Whatever happened to managed apps? by Desler · · Score: 1

    Because this isn't just about the NDK.

  10. It's Inevitable by imperious_rex · · Score: 1

    For desktop PCs, support for 32-bit has been winding down for some time now, so it's no surprise that mobile computing would do the same. It has taken me a couple years, but I've completely transitioned all of our home desktop and laptop PCs to 64-bit hardware and operating systems. The only 32-bit desktop PC I have is an old 80486-based system that runs Windows 3.1 just for nostalgia (my first PC). 32-bit has had a good long run, but everybody knew the age of 32-bit computing would eventually come to an end, just as the ages of 16- and 8-bit computing declined and ended. Someday, 64-bit will be obsolete as well.

    1. Re:It's Inevitable by skullandbones99 · · Score: 1

      With respect, the 8-bit era is still alive today with people repairing and creating peripherals for home computers from the early 1980s. Just go to Ebay and see the trade in Sinclair ZX Spectrums (Z80) and the other home computers such as the Commodore 64 (6502). Remember the Z80 vs 6502 CPU wars ?

      It is still possible to purchase brand new 40-pin Z80 CPUs https://uk.farnell.com/zilog/z... so 8-bit is not yet fully dead... long live the Z80 !

    2. Re:It's Inevitable by imperious_rex · · Score: 1

      You're absolutely right, no "obsolete" technology ever really dies. Kerosene lanterns, muskets, and tintype cameras are still being used, but only as curiosities and not for day-to-day use in the 21st century. Similarly, 8-bit computing will never die as long as there are hobbyists and nostalgic techies who enjoy a simpler time or want to push old technology to its limits. But for common modern computing usage (such as web surfing, multimedia, graphic design, desktop publishing, video editing, servers, etc. ), a 16- or 8-bit CPU is extremely under-powered.

    3. Re:It's Inevitable by skullandbones99 · · Score: 1

      Well, my ZX Spectrum has a SD card reader for game storage and works with LCD monitors. The designer used 3D printing to make a suitable case for the SD card adaptor. Now games load instantly, no need to wait 5 to 10 minutes for the games to load off tape! 8-bit is still alive and kicking in the 21st century.

      And consider that the amount of available RAM was 48KB, games had to be designed well, no room for bloatware.

  11. Re:we officially don't care by nightfire-unique · · Score: 1

    about you and your obsession with antique junk

    You think my phone's an antique? You should see my laptop: it's a W520!

    Seriously, thoough, I'm old enough at this point in my life to know what's important to me. A lot of people are all about the sexual appeal of their possessions - "blinging" cars, phones, watches, etc. I lift weighs and rock climb, I'm well spoken, and I'm good in bed, so I'm able to "get away" with last year's fashion.

    For the reasons stated in my original comment, I'm not really interested in trading in my old, uncool "antique" for something hip n'trendy.

    --
    A government is a body of people notably ungoverned - AC
  12. Re:Whatever happened to managed apps? by sexconker · · Score: 1

    Dude, Dalvik is gone and has been for a long time. It's Android Runtime now, or ART. It's toooooooooootally not just Dalvik with a name change so Google can try to ditch its reputation.

  13. Re: we officially don't care by nightfire-unique · · Score: 1

    Oh, for sure. I've written a few native apps. :)

    --
    A government is a body of people notably ungoverned - AC
  14. Re:iOS has been 64 bit for years now by Gabest · · Score: 1

    Commodore 64 was sooooooo ahead of it's time.

  15. Re:iOS has been 64 bit for years now by Anonymous Coward · · Score: 1

    Its good that your opinion is both wrong and ineffectual.

  16. Re:you have a tiny penis by nightfire-unique · · Score: 1

    Wha.. how does that follow?

    --
    A government is a body of people notably ungoverned - AC
  17. Re:Well I'm officially worried by nightfire-unique · · Score: 1

    It's a shitty compromise, but Linux Deploy with a debian image does work remarkably well. :/

    I do miss my old Nokia N900 with Maemo.

    --
    A government is a body of people notably ungoverned - AC
  18. Re: Whatever happened to managed apps? by phantomfive · · Score: 1

    Ultimately the Dalvik layer is making c language graphics calls to the kernel layer. All you need is permissions to do the same, and adb has permission (last time I checked). I think most games don't go through Dalvik either, using jni, but I haven't checked.

    --
    "First they came for the slanderers and i said nothing."
  19. Re:iOS has been 64 bit for years now by elohssa · · Score: 1

    I love it when the android fanbois bring up the small amount of ram in iOS devices; as if maximum ram utilization was the thing we should optimize for in mobile devices.

  20. Re:Well I'm officially worried by nightfire-unique · · Score: 1

    Humph.

    The person who modded me down - I know you can't reply as yourself, but can you reply as anonymous? I'm genuinely curious: do you work for the industry? What's your beef?

    --
    A government is a body of people notably ungoverned - AC
  21. Re: iOS has been 64 bit for years now by bn-7bc · · Score: 1

    Well yeas and no it daves a bit of energy nor neding to access flash to often bur since we ate talking dram and not sram (correct me Iâ(TM)m wrong) we have ram refreshes thst ate not free energy wise. Whst takes more energy , I have no idea

  22. Re:iOS has been 64 bit for years now by fattmatt · · Score: 1

    I'll take 2 of those over 1 privacy rape phone any day!!

  23. Is it Y2038 ready ? by skullandbones99 · · Score: 1

    Only 19 years to go until Y2038 hits on 19th January 2038.

    See https://en.wikipedia.org/wiki/...

    Note 64-bit systems greatly help to avoid Y2038 failures but anything using 32-bit time may fail or may have limitations.

    Ever noticed that you can't set Android's date past 2036 ? I guess this is to ensure that Y2038 issues are not hit. I wonder whether 64-bit Android removes this limitation ?

  24. The only way to stop sales of Android 4.x by perpenso · · Score: 1

    So has Android, since v5.0. This is about ending backwards compatibility with 32 bit apps.

    Basically there seems no other way to stop people from continuing to sell Android 4.x-based phones.

  25. liars - false performance claim by iggymanz · · Score: 1

    Claiming 64 bit code is faster than 32 bit? False, it is slower for many common operations.

  26. Re:we officially don't care by nightfire-unique · · Score: 1

    If I had a dime! ;p

    --
    A government is a body of people notably ungoverned - AC
  27. Re:Well I'm officially worried by nightfire-unique · · Score: 1

    *shrug*

    Never really run windows.. but there's several orders of magnitude between 386/486 -> modern CPUs, and very little between Note 3->recent devices.

    --
    A government is a body of people notably ungoverned - AC
  28. Re:you have a tiny penis by nightfire-unique · · Score: 1

    Eh, crap. Sorry hahah. This is a meme isn't it?

    I haven't had much time to follow the meme culture lately. :(

    --
    A government is a body of people notably ungoverned - AC
  29. Re:iOS has been 64 bit for years now by johnsie · · Score: 1

    Go onto https://myactivity.google.com/ and tell me how good you think your Android spyware device is.

  30. Re:iOS has been 64 bit for years now by johnsie · · Score: 1

    No it wasn't. But it did have a nice music chip.